{"id":130,"date":"2011-08-10T13:37:02","date_gmt":"2011-08-10T13:37:02","guid":{"rendered":"http:\/\/oto-env.com\/blog\/?p=130"},"modified":"2020-09-16T14:10:31","modified_gmt":"2020-09-16T18:10:31","slug":"quality-assurance-101-reproducibility","status":"publish","type":"post","link":"https:\/\/oto-env.com\/blog\/quality-assurance-101-reproducibility\/","title":{"rendered":"Quality Assurance 101: Reproducibility"},"content":{"rendered":"<p>Last week I posted about environmental practitioners\u00a0 limiting their opinions to the areas in which they have expertise.\u00a0 From there I went off on a little rant about the importance of consultants providing data to prove their conclusions and predictions.\u00a0\u00a0 Today&#8217;s little lecture is on the importance of scientific results being reproducible.\u00a0 Reproducibility is a bedrock scientific principle.<\/p>\n<p>When scientists talk about reproducibility, they are not talking about the nocturnal habits of our species.\u00a0 Instead they are referring to the ability of two scientists to be able to conduct the same experiment and come up with the same result.\u00a0 The experiment could be as simple as measuring the volume of a liquid or as complex as measuring the width of an atom.\u00a0 Either way, if multiple scientists are able to get the same answer, the data is said to be reproducible and therefor to have scientific merit.\u00a0 On the other hand if they unable to arrive at the same result, then the resulting data is said to be &#8220;irreproducible&#8221; or &#8220;non-reproducible&#8221; and the data has no scientific credibility.<\/p>\n<p>Among scientists, saying that data is non-reproducible a very serious indictment.\u00a0 There is a nerdy humor publication called the <a title=\"Journal of Irreproducible Results\" href=\"http:\/\/www.jir.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Journal of Irreprocucible Results<\/a>, that scientists get a big chuckle over.\u00a0 The fact that irreproducible results are a source of humor, should give you a sense for their value among professionals.<\/p>\n<p>So what does this have to do with environmental engineering?\u00a0 Glad you asked.\u00a0 I can not tell you how many times OTO has been brought in for a second opinion right before a client was getting ready to spend a large amount of money on remediation.\u00a0 In these cases there is generally &#8220;data&#8221; indicating a horrible environmental problem.\u00a0 Yet when we retest, we are often not able to reproduce the original data; without reproducible data, the basis for implementing the remediation didn&#8217;t make sense.\u00a0\u00a0 Garbage in, money out the door.\u00a0 Except with so much money on the line, it&#8217;s not a joke; and yes this really happens all the time.<\/p>\n<p>So remember the importance of environmental data being reproducible before you make big decisions on cleanups.\u00a0 It&#8217;s really the same dictum as the old carpenter&#8217;s rule: measure twice, cut once.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Last week I posted about environmental practitioners\u00a0 limiting their opinions to the areas in which they have expertise.\u00a0 From there I went off on a little rant about the importance of consultants providing data to prove their conclusions and predictions.\u00a0\u00a0 Today&#8217;s little lecture is on the importance of scientific results being reproducible.\u00a0 Reproducibility is a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-130","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"An explanation of the importance of reproducibility in environmental 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